Home / 15,289.54-21,080.03-9,902.46

Finding the Fourth Proportional to 15,289.54, 21,080.03 and 9,902.46

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Solution

The fourth proportional to 15,289.54, 21,080.03 and 9,902.46 is: 13,652.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289.54 : 21,080.03 = 9,902.46 : x
  2. Step 2: Convert to fraction form
    15,289.54/21,080.03 = 9,902.46/x
  3. Step 3: Cross multiply
    15,289.54x = 21,080.03 × 9,902.46
  4. Step 4: Simplify right side
    15,289.54x = 208,744,153.87
  5. Step 5: Solve for x
    x = 208,744,153.87/15,289.54
  6. Step 6: Final answer
    x = 13,652.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.